Align RT is a sophisticated, 3 dimensional video-based image-guided radiation therapy (IGRT) approach which provides the ability to perform real-time tracking of the 3D surface of a patient for both setup and real-time monitoring.

The system consists of 2 ceiling mounted 3D cameras focused on the patient on the treatment table.  The cameras and a patterned light are used to reconstruct the 3D surface of the patient.

How Does AlignRT Work?                                                                         
During treatment planning, a reference image is obtained with the patient in the optimal (ideal) position.  When the patient is ready to be treated, a new image is obtained each day and matched to the reference image. 

Computer software compares the two images and quantitatively calculates any differences.  The Radiation Therapists then use this information to accurately re-position the patient into the optimal position for treatment.

Align RT System

The system provides continuous monitoring of the patient during treatment to ensure accurate positioning throughout the fraction.

What Makes AlignRT Unique?                                                                  

• Real-time Monitoring

      Most other IGRT systems do not allow imaging during treatment

• Video-based

Patients are not exposed to additional radiation; particularly appealing in pediatric patients

• Non-contact System

Patients feel nothing and may at most notice a flash or a light shining from the cameras

UCSD Researcher Steve Jiang, Ph.D. has previous experience with the AlignRT system while on Faculty in the Department of Radiation Oncology at Massachusetts General Hospital (Harvard Medical School). 

Recently appointed Director of the UCSD Center for Advanced Radiation Technologies (CART), he plans to continue his research collaborations with the manufacturers of AlignRT. 

AlignRT Publications by UCSD Radiation Oncology Faculty                            

Gierga DP, Turcotte JC, Riboldi M, Sharp GC, Jiang SB, Chen GC. Comparison of target registration errors for multiple modalities in image-guided partial breast irradiation. Int J Radiat Oncol Biol Phys 2006;66:S103-4

Interested in learning more about the AlignRT System?
Check out the VisionRT website.

It contains further patient information, research studies and other resources